Pneumatic-tire-cutting machine



AXWELL.

PNEUMATIC TIRE CUTTING MACHINE.

APPLICATION FILED NOV. 18, I920.

Patented Apr. 18, 1922.

2 SHhEISSHEEY L INVENTOR 56% Z: [Van W62! A TTORNEY B.. E. MAXWELL.

PNEUMATIC TIRE CUTTING MACHINE.

APPLICATION FILED NOV. III, I920v A 1 95 1 D Katented Apr. 18, 1922.

lf/Vf/VTOR Berti: Max We 22 a. up

! BER-T E. MAXVJ'ELL, E l/VICHITA, KANSAS.

Illlil'EUTiIATIC-TIRE-CUTTING MACHINE.

application filed frl'ovember To all whom it may concern Be it lil'lOWll that l, BERT E. MAXWELL, a citizen of the United States, residing at W'ichita, in the county of Sedgwiolr and State of Kansas, have invented certain new and useful Improvements in a Pneumatic- Tire-Cutting Machine, of which the following is a description, referring to the drawings; which form a part of this specification.

lhe invention relates to a machine, useful in shearing oh the head of tire casings and also to kerf through the fabricated body to predetermined depth so as to leave a portion of the fabric uncut.

in the drawings, 1. represents a side elevation of the machine and illustrates the method. and means employed for severing the head of a tire casing as employed in actual practice. Fig. 2 represents a top view of the structural elements disclosed in Fig. 1. 3 is a fragmentary detail view of the cutting elements of the invention as employed where a predetermined depth of cutting is desirable. Similar numerals of reference indicate corresponding parts throughout the drawings.

Referring to the drawings, represents the base of the machine frame supporting a standard 11 from which portions 12- of the frame diverge to house the operative elements of the-machine. Mounted in the housings 13, 14: is seen the drive shaft 15 to which is fixedly fastened the clutch ratchet. At 18 is the pulley wheel revolvably mounted on the shaft 15 and provided with a hub having a clutch face adapted to engage the ratchet 17. A lever 19 is pivotally mounted at20 to an arm 12 of the frame and is provided with a spring catch 21 for maintaining a de-.

sired. position of said lever with reference to the pulley 18. The lever 19 operates toengage or disengage the pulley 18 from the ratchet 17, at the will of the operator.

At 22 is seen the vertical feeding sheft, journalled in bearings 13, in on the frame This shaft is driven by means of its beveled gear 23 in mesh with the bevel gear 16 on the drive shaft 15. To the upper end of the shaft 22, Fig. 1 is secured a disc-like feed roll 24:, preferably provided with a milled periphery.

in Fig. 3, feed roller 25 is shown used in lieu of the disc 24:, the purpose of the disc 24 and roller 25 being to create a resistance against the rec "ion of the cutter 26 whereby a tire casing can be fed between the cutter Specification of Letters Patent.

18, 1920. Serial No. 42 L331.

The frame 12 is slotted at 33 to receive the upper portion of the housing A hand Wheel 3% rigid with the screw controls the movement of said screw as threaded through the frame 12 at 86. This screw 35 connects to a member 37, pivotally engaging arms 38, 38 rigid with the housing By means oi the hendwheel 34: and screw adjustment, the housing 29 is pivotally moved, inwardly or outwardly by the operator so that the purposes of the invention may be accomplished. As seen in Fig. 1 the wheel 3% has been turned so that the edge of the cutting disc 26 will entirely sever the bead oi the casing as led between the feed roll 24 and the cutting disc 26; while in Fig. 3 by means of the adjustment, a desired space is obtained between the cutting disc 26 and the roller 25 whereby a cut of predetermined depth may be made in the casing or other materials as fed between the parts. it will be noted that the gear 31 will slide upwardly and downwardly in the pivotal adjustment of the housing 29 but will remain in mesh with the gear 32 at any point in such adjustment.

The set screw 39 is threaded through the frame 12. After the adjustment oi. thehOu' ing 29 has been accomplished by means of the hand wheel 34 and screw 35, the screw 39 isset to bear against the housing 29 to maintain the desired adjustment or spacing of the disc cutter 26 from the feed rollers 24 or 25 as employed.

A lower guide or rest 40 supports the head or the casing 27 as clearly seen in Fig. 1; this rest is adjustably raised or lowered as desired by means of a shank 41 passing through the frame 12 and made stationary by means of the thumb screw 42. The casing 27'is further supported hy=-means of a roller 4-3 journalled on the upper of an arm 14:, provided with a slot 45 lower Hill ' 6 operated by Sim-ft; & vertical feed. shait rotombiy mounted in mid homework 2m ieed roller disc (MW)? 011 thereon; an upright simfi, a said shaft arranged in opembivo pmximi'izy to said food roller; gearing arranged. on sohi shafts 'Whoroby driveshoft operation (iiivos 5m food roller 2% a siowor speed. than "the disc cnt toi for the purposes spocifieiii.

i2. A cutting machine inciuciing EL immework, a drive shaft rotatably mounaed theiein, :i piiiiey Wnwel, clutch and, dutch ai ing mechanismopemtiveiy coasting witp. said drive, shaft; an upright food shaft 1'0- tatabiy mounted in said 'ii'aino'work, a ieeci.

tailor thereon; m uptighf, shait homing pivo'miiy connocm'ing to said framework. shaft in said housing a disc cutter on said. shaft and means fox securing and nmimaining said. disc cutter in reizitivo proximity to said feed P011651; gearing arranged on the savomi shafts in operotiva series, whereby drive shaft operation drives saici foel roiier at a slower speed than fine disc cutter. for the purposes of the invention.

3. A cutting; machine i iciuding a Tam e. work, a drum shaft rotatabi'v mounteojthoi'ein, puliey Wheel, clutch and ciu'ech operating mechanism operacivoiy coasting with savidk iirive shaft; 2 verticai feed shaft :1)- mtzfniy mountmi in said framework, a feed roller thomon; an upirig ii'a shaft housing feed shaft mmm mountad 1331 F iivotrfly oomiocting to sodiqi i mmewoi k 2i shaft in said housing, a autism on saioi siiziift and means 'socuring zmii 1mintaiziing saii disc cutter rei tiva proximity "to said. roller iizciudmg 2m adius't Escrow z hroizcied ilhfflfigll said fmmework pivotaliy ongziging 30 saio; pivot-2Q shaft. housing and Eek, screw thmugh said fimmo Woik adjusmbia to oppose :the in by the acijus'oing screw on Quid, snai mg; gearing arranged on siia h operative germs whemby drive tion drives saic'i feoc'i rolioi' ii slows? em? than tho diiso cutie? tho gm'zposoo as spocifiod.

A. cutting machine including Work horizoms. di-ivo shaftmouniieci ifsioreiw a, puiioy Wham chit-ch opomc'. mocimiiism we said. drivo so b in combination;

thereon; 2m no i saw,

work, :1. fee-Ci mile-r housing; pivot- 117 conneotm wm'k, a Filo-It iii i nous on said s haf'ic and means for:

imity to said femi rolioir inoulfling; 5m; 111g screw thi'ezidod. through sax-2M framework pivo'mily engaging io said pivotofl siiatii housing and aoeafi sofow 'thmugh said :ii"&m@- work mifiusmbio to 01313686 the fioi'co fizlmfif "a,

by the ad 'gustiiw sci-ow on soii shaft how mg: lower ELQL in upper suppofez, e fiom said framowm jlitobiy mounted. admp'i1e4i 3o carry a tire caslng izowa'itcig betwee'n said feed roller and sowing disc 5-, miier joui'noliotl on said uppor smgpofli; gearing arranged on the sevoml in opem'bi've series, whomby (hive Sim-ft o giersuitor io'r 62w :ition serves to fiflve saixi slower sigeed than the disc purposes 01 the ilivon'tion.

BERT MA WELL.

UHA'RLEQ, W. A NETHEsooT. 

